#bluelight — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #bluelight, aggregated by home.social.
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For years, blue light has been blamed for sleepless nights. But new research suggests your bedtime Netflix habit may not be the real problem. Here's what sleep experts actually found. https://english.mathrubhumi.com/lifestyle/health/is-watching-screens-before-bed-really-ruining-your-sleep-heres-what-science-actually-says-laiig46q?utm_source=dlvr.it&utm_medium=mastodon #SleepScience #BlueLight #SleepTips #ScreenTime
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Big Picture Science for June 29, 2026: Skeptic Check: Blue Light Special
Many of us know the feeling: we intend to go to bed but pull out our phones for one last scroll. Setting them aside hours later, we’re wide awake, unable to fall asleep. For years, scientists have singled out blue light emitted from our devices as the key culprit behind our post-scrolling insomnia, but the scientific consensus is shifting. Although blue light signals to brains that its daytime, surprising new research suggests that our glowing screens may play a smaller role than previously thought.
We present the fascinating science around biological mechanisms of sleep and wakefulness, why circadian rhythms have more in common with your grandfather’s clock than you might think, and why scientists who question the role of blue light in causing nighttime restlessness, still don’t let our phones off the hook completely.
Guests:
* Michael Gradisar – clinical psychologist and sleep researcher, former professor at Flinders University in Australia. Currently serves a head of Sleep Science at Sleep Cycle, a sleep tracking app company
* Jay Dunlap – geneticist and molecular geneticist at the Geisel School of Medicine at Dartmouth who works the molecular basis of circadian rhythms
* Mariana Figueiro – photobiologist, Director of the Light and Health Research Center and Professor of Population Health Science and Policy at the Icahn School of Medicine at Mount SinaiDownload podcast at - https://bigpicturescience.org/episodes/skeptic-check-blue-light-special
You can listen to this and other episodes at http://bigpicturescience.org/
Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!
#BlueLight #CircadianRhythms #Sleep #BigPictureScience #SETI #News #Podcast #Science
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Big Picture Science for June 29, 2026: Skeptic Check: Blue Light Special
Many of us know the feeling: we intend to go to bed but pull out our phones for one last scroll. Setting them aside hours later, we’re wide awake, unable to fall asleep. For years, scientists have singled out blue light emitted from our devices as the key culprit behind our post-scrolling insomnia, but the scientific consensus is shifting. Although blue light signals to brains that its daytime, surprising new research suggests that our glowing screens may play a smaller role than previously thought.
We present the fascinating science around biological mechanisms of sleep and wakefulness, why circadian rhythms have more in common with your grandfather’s clock than you might think, and why scientists who question the role of blue light in causing nighttime restlessness, still don’t let our phones off the hook completely.
Guests:
* Michael Gradisar – clinical psychologist and sleep researcher, former professor at Flinders University in Australia. Currently serves a head of Sleep Science at Sleep Cycle, a sleep tracking app company
* Jay Dunlap – geneticist and molecular geneticist at the Geisel School of Medicine at Dartmouth who works the molecular basis of circadian rhythms
* Mariana Figueiro – photobiologist, Director of the Light and Health Research Center and Professor of Population Health Science and Policy at the Icahn School of Medicine at Mount SinaiDownload podcast at - https://bigpicturescience.org/episodes/skeptic-check-blue-light-special
You can listen to this and other episodes at http://bigpicturescience.org/
Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!
#BlueLight #CircadianRhythms #Sleep #BigPictureScience #SETI #News #Podcast #Science
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Big Picture Science for June 29, 2026: Skeptic Check: Blue Light Special
Many of us know the feeling: we intend to go to bed but pull out our phones for one last scroll. Setting them aside hours later, we’re wide awake, unable to fall asleep. For years, scientists have singled out blue light emitted from our devices as the key culprit behind our post-scrolling insomnia, but the scientific consensus is shifting. Although blue light signals to brains that its daytime, surprising new research suggests that our glowing screens may play a smaller role than previously thought.
We present the fascinating science around biological mechanisms of sleep and wakefulness, why circadian rhythms have more in common with your grandfather’s clock than you might think, and why scientists who question the role of blue light in causing nighttime restlessness, still don’t let our phones off the hook completely.
Guests:
* Michael Gradisar – clinical psychologist and sleep researcher, former professor at Flinders University in Australia. Currently serves a head of Sleep Science at Sleep Cycle, a sleep tracking app company
* Jay Dunlap – geneticist and molecular geneticist at the Geisel School of Medicine at Dartmouth who works the molecular basis of circadian rhythms
* Mariana Figueiro – photobiologist, Director of the Light and Health Research Center and Professor of Population Health Science and Policy at the Icahn School of Medicine at Mount SinaiDownload podcast at - https://bigpicturescience.org/episodes/skeptic-check-blue-light-special
You can listen to this and other episodes at http://bigpicturescience.org/
Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!
#BlueLight #CircadianRhythms #Sleep #BigPictureScience #SETI #News #Podcast #Science
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Photographer captures the #HiddenLight of animals: https://zorz.it/oDJRs
#MattGrowcoot #BlueLight #InvisibleLight #Tasmania #UltraViolet #UltraVioletPhotography #UVLight #animals
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https://www.europesays.com/dk/94752/ Stockholm’s Dual-Color Streetlights Do A Lot More Than Improve Visibility #BlueLight #ColorLEDLights #EnvironmentalAdministration #NatureReserve #SmartSensors #Stockholm #StudioRoosegaarde #Sweden #UrbanBiodiversity
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peter chauncey’s SONG OF THE WEEK “Go Your Own Way” https://peterchauncey1.bandcamp.com/track/go-your-own-way-2 peter takes Fleetwood Mac’s twangy power pop song into a “blue light in the basement” vibe. Personnel:
Peter – vocals & arrangement
Daniel Berkman – percussion & synthesizer
Johnny J. Blair – bass, guitar, & productionhttps://peterchauncey1.bandcamp.com/track/go-your-own-way-2
#peterchauncey #fleetwoodmac #lindseybuckingham #bluelight #danielberkman #johnnyjblair #americana #alternativerock #trippy #basement
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peter chauncey’s SONG OF THE WEEK “Go Your Own Way” https://peterchauncey1.bandcamp.com/track/go-your-own-way-2 peter takes Fleetwood Mac’s twangy power pop song into a “blue light in the basement” vibe. Personnel:
Peter – vocals & arrangement
Daniel Berkman – percussion & synthesizer
Johnny J. Blair – bass, guitar, & productionhttps://peterchauncey1.bandcamp.com/track/go-your-own-way-2
#peterchauncey #fleetwoodmac #lindseybuckingham #bluelight #danielberkman #johnnyjblair #americana #alternativerock #trippy #basement
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"Do you know using screens before bed can cut sleep by 45%?"
Exposure to blue light from smartphones, tablets, and computers tricks the brain into thinking it's still daytime, suppressing melatonin production.
This disrupts the body's natural sleep-wake cycle.
"Sleep is the best meditation," says Dalai Lama. Can you meditate before bed without screens?
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https://www.europesays.com/dk/92964/ Stockholm’s Dual-Color Streetlights Do A Lot More Than Improve Visibility #BlueLight #ColorLEDLights #EnvironmentalAdministration #NatureReserve #SmartSensors #Stockholm #StudioRoosegaarde #Sweden #UrbanBiodiversity
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Oral Care Market in the Netherlands | Report – IndexBox https://www.byteseu.com/2017522/ #AdvancedWhiteningFormulas(hydrogenPeroxide #AppConnectedSmartBrushes #BlueLight) #ConsumerGoodsMarketReport #DailyCleaning #EnamelSafeAbrasives #forecast #GingivitisPrevention #MarketAnalysis #Netherlands #OralCare #PlaqueRemoval #Sonic/oscillatingBrushTechnology #ToothWhitening
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Oral Care Market in the Netherlands | Report – IndexBox
Netherlands Oral Care Market 2026 Analysis and Forecast to 2035 Executive Summ…
#Netherlands #Nederland #NL #Europe #Europa #EU #Advancedwhiteningformulas(hydrogenperoxide #App-connectedsmartbrushes #bluelight) #consumergoodsmarketreport #Dailycleaning #Enamel-safeabrasives #forecast #Gingivitisprevention #marketanalysis #OralCare #Plaqueremoval #Sonic/oscillatingbrushtechnology #Toothwhitening
https://www.europesays.com/netherlands/11312/ -
Why Modern Life Is Ruining Your Sleep?😴😴
#sleephealth #circadianrhythm #bluelight #hormonehealth #sleepdeprivation #technologyimpact #modernlifestyle #outdoorhealth #naturallight #sleepbetter #healthyliving #sleepquality #lifehacking #biohacking -
Why Modern Life Is Ruining Your Sleep?😴😴
#sleephealth #circadianrhythm #bluelight #hormonehealth #sleepdeprivation #technologyimpact #modernlifestyle #outdoorhealth #naturallight #sleepbetter #healthyliving #sleepquality #lifehacking #biohacking -
APT37 Adds New Capabilities for Air-Gapped Networks
#APT37 #RESTLEAF #SNAKEDROPPER #THUMBSBD #VIRUSTASK #BLUELIGHT
https://threatlabz.zscaler.com/blogs/security-research/apt37-adds-new-capabilities-air-gapped-networks -
APT37 Adds New Capabilities for Air-Gapped Networks
#APT37 #RESTLEAF #SNAKEDROPPER #THUMBSBD #VIRUSTASK #BLUELIGHT
https://threatlabz.zscaler.com/blogs/security-research/apt37-adds-new-capabilities-air-gapped-networks -
APT37 Adds New Capabilities for Air-Gapped Networks
#APT37 #RESTLEAF #SNAKEDROPPER #THUMBSBD #VIRUSTASK #BLUELIGHT
https://threatlabz.zscaler.com/blogs/security-research/apt37-adds-new-capabilities-air-gapped-networks -
APT37 Adds New Capabilities for Air-Gapped Networks
#APT37 #RESTLEAF #SNAKEDROPPER #THUMBSBD #VIRUSTASK #BLUELIGHT
https://threatlabz.zscaler.com/blogs/security-research/apt37-adds-new-capabilities-air-gapped-networks -
APT37 Adds New Capabilities for Air-Gapped Networks
#APT37 #RESTLEAF #SNAKEDROPPER #THUMBSBD #VIRUSTASK #BLUELIGHT
https://threatlabz.zscaler.com/blogs/security-research/apt37-adds-new-capabilities-air-gapped-networks -
"Is exposure to blue light before bed reducing your sleep quality by 60%?
Prolonged exposure to blue light, emitted by smartphones, computers, and TVs, suppresses melatonin production, making it harder to fall asleep. This is because blue light tricks the brain into thinking it's still daytime.
A good night's sleep is just as vital as a meal, it's not a luxury, it's a necessity.
What do you do to avoid the blue light sleep killer?
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Scientists make concerning discovery after spotting massive blue object in satellite images — here’s what they saw
A vivid blue iceberg drifting from Antarctica is drawing scientific attention, as meltwater spreading across its surface shows…
#NewsBeep #News #Space #Antarctica #blueiceberg #bluelight #massiveicebergs #risingsealevels #Science #SouthGeorgiaisland #squarekilometers #UK #UnitedKingdom
https://www.newsbeep.com/uk/398130/ -
#SelfcareSunday #KindlyMyers #NightSwim #HandBra #Wallpapers #BlueLight #Seductive #Glamour #PoolLife #WetHair #Model #Beauty #NightPhotography #Mysterious #Blonde #FitnessMotivation #WaterReflections #ArtisticPhotography #Portrait #Confident #PoolNights #Sensual #Stunning #LuxuryVibes #KentuckyGirl
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#SelfcareSunday #KindlyMyers #NightSwim #HandBra #Wallpapers #BlueLight #Seductive #Glamour #PoolLife #WetHair #Model #Beauty #NightPhotography #Mysterious #Blonde #FitnessMotivation #WaterReflections #ArtisticPhotography #Portrait #Confident #PoolNights #Sensual #Stunning #LuxuryVibes #KentuckyGirl
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Madden NFL 26 Neon Wallpaper
#MaddenNFL26 #Neon #AmericanFootball #Helmet #BlueAesthetic #DarkBlue #2025Games #FootballHelmet #AmericanFootball #Sports #GameDay #Athlete #Visor #FaceMask #Intensity #Focus #Stadium #Crowd #ProtectiveGear #SportGear #SportsPhotography #DramaticLighting #BlueLight #RedGlow #HighDetail #Modern #Competition
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Madden NFL 26 Neon Wallpaper
#MaddenNFL26 #Neon #AmericanFootball #Helmet #BlueAesthetic #DarkBlue #2025Games #FootballHelmet #AmericanFootball #Sports #GameDay #Athlete #Visor #FaceMask #Intensity #Focus #Stadium #Crowd #ProtectiveGear #SportGear #SportsPhotography #DramaticLighting #BlueLight #RedGlow #HighDetail #Modern #Competition
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Removing yellow stains from fabric with blue light
https://phys.org/news/2025-09-yellow-fabric-blue.html
#HackerNews #RemovingYellowStains #BlueLight #FabricCare #Innovation #ScienceNews
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Removing yellow stains from fabric with blue light
https://phys.org/news/2025-09-yellow-fabric-blue.html
#HackerNews #RemovingYellowStains #BlueLight #FabricCare #Innovation #ScienceNews
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Removing yellow stains from fabric with blue light
https://phys.org/news/2025-09-yellow-fabric-blue.html
#HackerNews #RemovingYellowStains #BlueLight #FabricCare #Innovation #ScienceNews
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Removing yellow stains from fabric with blue light
https://phys.org/news/2025-09-yellow-fabric-blue.html
#HackerNews #RemovingYellowStains #BlueLight #FabricCare #Innovation #ScienceNews
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Removing yellow stains from fabric with blue light
https://phys.org/news/2025-09-yellow-fabric-blue.html
#HackerNews #RemovingYellowStains #BlueLight #FabricCare #Innovation #ScienceNews
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Photographer Captures the Hidden Light of Animals https://petapixel.com/2025/08/21/photographer-ben-alldridge-captures-the-hidden-light-of-animals/ #ultravioletphotography #invisiblelight #ultraviolet #Spotlight #bluelight #Features #tasmania #uvlight #uv
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Photographer Captures the Hidden Light of Animals https://petapixel.com/2025/08/21/photographer-ben-alldridge-captures-the-hidden-light-of-animals/ #ultravioletphotography #invisiblelight #ultraviolet #Spotlight #bluelight #Features #tasmania #uvlight #uv
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It’s important to have something nice to look forward to I think, so last night I booked to see Dear Evan Hansen in Manchester early next year.
It also happens to be one of the venues/shows where #ATG offer #tickets at a 25% discount to ‘blue light’ workers.
Not just #BlueLight, though. Teachers, social workers, prison officers, carers, charity workers and more are eligible. To see if you qualify, the list is here: https://help.atgtickets.com/hc/en-gb/articles/4404754048018-Who-qualifies-for-the-Local-Heroes-discount
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It’s important to have something nice to look forward to I think, so last night I booked to see Dear Evan Hansen in Manchester early next year.
It also happens to be one of the venues/shows where #ATG offer #tickets at a 25% discount to ‘blue light’ workers.
Not just #BlueLight, though. Teachers, social workers, prison officers, carers, charity workers and more are eligible. To see if you qualify, the list is here: https://help.atgtickets.com/hc/en-gb/articles/4404754048018-Who-qualifies-for-the-Local-Heroes-discount
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It’s important to have something nice to look forward to I think, so last night I booked to see Dear Evan Hansen in Manchester early next year.
It also happens to be one of the venues/shows where #ATG offer #tickets at a 25% discount to ‘blue light’ workers.
Not just #BlueLight, though. Teachers, social workers, prison officers, carers, charity workers and more are eligible. To see if you qualify, the list is here: https://help.atgtickets.com/hc/en-gb/articles/4404754048018-Who-qualifies-for-the-Local-Heroes-discount
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A couple more pictures of these two!
#EasternModel #SnailShell #ATKGirlArachne #Assassin #BlueLight #ToyPhotography
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A couple more pictures of these two!
#EasternModel #SnailShell #ATKGirlArachne #Assassin #BlueLight #ToyPhotography
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Did indeed take more pictures of Snail Shells' Assassin! As well as Eastern Models' ATK Girl Arachnae!
I just love the way the green reacts with blue lights~
#EasternModel #SnailShell #ATKGirlArachne #Assassin #BlueLight #ToyPhotography
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Did indeed take more pictures of Snail Shells' Assassin! As well as Eastern Models' ATK Girl Arachnae!
I just love the way the green reacts with blue lights~
#EasternModel #SnailShell #ATKGirlArachne #Assassin #BlueLight #ToyPhotography
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Why #LightPollution is a solvable #environmental crisis
Excessive #OutdoorLighting is deadly to #animals and takes a toll on #HumanHealth and wellbeing, too. But when it comes to large-scale environmental problems, this one may be a relatively easy fix.
By Alissa Greenberg
Friday, April 1, 2022"In recent decades, lightbulbs made with #LEDs arrived, a revolution in energy efficiency with seemingly little downside. After all, an #LED bulb converts some 90% of the electricity it uses into light, whereas a conventional incandescent bulb only converts about 10%. And LED bulbs are touted as lasting up to 25 times longer.
"But the physics of LEDs make them fundamentally different from incandescents. While those traditional bulbs put out warm white light made of all colors mixed together, LEDs filter blue-rich light through a specialized phosphor material, producing light that appears white to the human eye but is still more blue-intense than incandescents’ light.
"But #BlueLight is also the most disruptive to our #nighttime environment because it mimics daylight, disrupting the hormone production and sleep cycles of both animals and humans.
"#Melatonin, one of those hormones, helps the immune system destroy renegade cells dividing out of control. That can lead to other health issues, including heightened rates of #cancer. And, 'we’re not the only ones who produce melatonin,' says Mario Motta, a cardiologist and trustee of the American Medical Association. Even amoebae produce melatonin'—meaning even amoebae might be vulnerable to light at night.
"The impacts of light pollution are evident everywhere from human health to astronomy research, but they come into particular focus in the recent phenomenon of global species #dieoffs. Between 100 million and a billion birds die every year due to light pollution, according to Massachusetts IDA chapter president James Lowenthal. New York City recently dealt with a huge die-off, 'with flocks of #MigratoryBirds slamming into buildings,' says Sarah Bois, an ecologist at the island’s Linda Loring Nature Foundation and a member of Nantucket Lights. 'They’re attracted to light.' A 2015 study at New York’s 9/11 'Tribute in Light'' installation showed an increase from 500 birds within half a kilometer of the light beams before they were turned on to 15,700 just minutes after.
"The issue is a double whammy for birds because they rely on #insects for food—and those populations are plummeting, with light pollution contributing significantly to the so-called "#InsectApocalypse.” By some estimates, one third of insects attracted to light sources at night die before morning, either due to exhaustion or because they get eaten. And according to a study in Germany, the number of insects in that country alone that die after being attracted to lights can number 100 billion or more in a single summer.
"Some starve to death searching for food that should appear bluer at twilight but is lit up amber under streetlights, says insect conservationist Avalon Owens, a doctoral candidate at Tufts University. Some are thrown off by light just the way we are, because of their #CircadianRhythms. #Pollinators whose schedules are altered by artificial light miss the #flowers they’re evolutionarily paired with, if the flowers naturally close and open with the warmth of the sun. And insects that rely on circadian rhythms for their yearly development don’t hibernate in time for winter and freeze to death.
"On #Nantucket, these phenomena are of particular concern because the island is home to a remarkably healthy population of northern long-eared #bats, which are endangered. Like many birds, the bats rely on insects for food and are easily dazzled by light, putting them in increasing jeopardy. Jack Dubinsky, director of the Maria Mitchell Aquarium on Nantucket, says he’s concerned that adding increasingly lit-up nights to the challenges of #ClimateChange, water quality, and #ecosystem collapse could put huge pressure on some already struggling species. 'The more curveballs we throw, the less likely they’ll be able to find their way,' he says.
Read more:
https://www.pbs.org/wgbh/nova/article/light-pollution-led-nantucket-solutions/ -
Why #LightPollution is a solvable #environmental crisis
Excessive #OutdoorLighting is deadly to #animals and takes a toll on #HumanHealth and wellbeing, too. But when it comes to large-scale environmental problems, this one may be a relatively easy fix.
By Alissa Greenberg
Friday, April 1, 2022"In recent decades, lightbulbs made with #LEDs arrived, a revolution in energy efficiency with seemingly little downside. After all, an #LED bulb converts some 90% of the electricity it uses into light, whereas a conventional incandescent bulb only converts about 10%. And LED bulbs are touted as lasting up to 25 times longer.
"But the physics of LEDs make them fundamentally different from incandescents. While those traditional bulbs put out warm white light made of all colors mixed together, LEDs filter blue-rich light through a specialized phosphor material, producing light that appears white to the human eye but is still more blue-intense than incandescents’ light.
"But #BlueLight is also the most disruptive to our #nighttime environment because it mimics daylight, disrupting the hormone production and sleep cycles of both animals and humans.
"#Melatonin, one of those hormones, helps the immune system destroy renegade cells dividing out of control. That can lead to other health issues, including heightened rates of #cancer. And, 'we’re not the only ones who produce melatonin,' says Mario Motta, a cardiologist and trustee of the American Medical Association. Even amoebae produce melatonin'—meaning even amoebae might be vulnerable to light at night.
"The impacts of light pollution are evident everywhere from human health to astronomy research, but they come into particular focus in the recent phenomenon of global species #dieoffs. Between 100 million and a billion birds die every year due to light pollution, according to Massachusetts IDA chapter president James Lowenthal. New York City recently dealt with a huge die-off, 'with flocks of #MigratoryBirds slamming into buildings,' says Sarah Bois, an ecologist at the island’s Linda Loring Nature Foundation and a member of Nantucket Lights. 'They’re attracted to light.' A 2015 study at New York’s 9/11 'Tribute in Light'' installation showed an increase from 500 birds within half a kilometer of the light beams before they were turned on to 15,700 just minutes after.
"The issue is a double whammy for birds because they rely on #insects for food—and those populations are plummeting, with light pollution contributing significantly to the so-called "#InsectApocalypse.” By some estimates, one third of insects attracted to light sources at night die before morning, either due to exhaustion or because they get eaten. And according to a study in Germany, the number of insects in that country alone that die after being attracted to lights can number 100 billion or more in a single summer.
"Some starve to death searching for food that should appear bluer at twilight but is lit up amber under streetlights, says insect conservationist Avalon Owens, a doctoral candidate at Tufts University. Some are thrown off by light just the way we are, because of their #CircadianRhythms. #Pollinators whose schedules are altered by artificial light miss the #flowers they’re evolutionarily paired with, if the flowers naturally close and open with the warmth of the sun. And insects that rely on circadian rhythms for their yearly development don’t hibernate in time for winter and freeze to death.
"On #Nantucket, these phenomena are of particular concern because the island is home to a remarkably healthy population of northern long-eared #bats, which are endangered. Like many birds, the bats rely on insects for food and are easily dazzled by light, putting them in increasing jeopardy. Jack Dubinsky, director of the Maria Mitchell Aquarium on Nantucket, says he’s concerned that adding increasingly lit-up nights to the challenges of #ClimateChange, water quality, and #ecosystem collapse could put huge pressure on some already struggling species. 'The more curveballs we throw, the less likely they’ll be able to find their way,' he says.
Read more:
https://www.pbs.org/wgbh/nova/article/light-pollution-led-nantucket-solutions/ -
Flying to my hometown in Argentina.
#plane #flight #cabin #neon #neonlights #bluelight #streetphotography #sonya6100 #adobelightroom #primelens #sony50mm18 #50mm
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You may get eyestrain from looking at screens all day BUT blue light from screens isn’t ruining your eyes!
Looking at screens for too long can cause eyestrain, but eyestrain existed long before screens. (Driving long distances is another cause, the Mayo Clinic notes.) Eyestrain may involve fatigue of the tiny muscles in and around our eyes, and people who get eyestrain may experience discomfort that includes headaches, blurry vision, watering of the eyes, and sensitivity to light.
There’s a rumor that the blue light from smartphones (or other screens) can ruin your vision, perhaps even leading to blindness, but it’s not backed up by evidence. “The amount of light coming from a computer has never been demonstrated to cause any eye disease,” the American Academy of Opththalmology states in an article on their website recommending against blue-light-blocking glasses. There is research that finds blue light can damage cells in certain lab conditions, but those conditions are very different from what happens in the actual cells of our retina. https://squeet.me/objects/962c3e10f8853ae50083a572441b8dc9bcf4389a
